Compressor piston



FIG. 1 is a front elevational view of a compressor piston;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevation view thereof, the left side elevationview being a mirror image; and,

FIG. 6 is a perspective view thereof.

The ornamental design for a compressor piston, as shown and described.